Governor for steam or elastic-fluid engines.



o. W.. DAKE. GOVERNOR FOR STEAM 0R ELASTIC FLUID ENGINES.

APPLICATION FILED JUNE 13, 1908.

Patented May 31, 1910.

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APPLICATION FILED JUNE 13, 1908.

Patented May 31, 1910.

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W TNESSES: 92- a- Zi/ 0. W DAKE. I GOVERNOR FOB. STEAM OR ELASTIC FLUIDENGINES.-

' I APPLICATION FILED JUNE 13, 190B.

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,1 TTORNE Y.

this specification,

CHARLES W. DAKE, 0F GRAND RAPIDS, MICHIGAN,

ASSIGNOR TO THE DAKE-AMERICAN STEAM TURBINE COMPANY, OF GRAND RAPIDS,MICHIGAN.

GOVERNOR FOR STEAM 0R ELASTIC-FLUID ENGINES.

Specification of Letters Patent. Patented llay 31, 1910.

Application filed June 13, 1908. Serial No. 438,416.

To all whom it may concern:

Be it known that I, CHARLES W. DAKE, citizen of the United States,residing at the city of Grand Rapids, county of Kent, and State ofMichigan, have invented certain new and useful Improvements inGovernorsfor Steam or Elastic- Fluid Engines, of whichthe following isa'specification.

This invention relates to improvements in governors for steam or elasticfluid engines, it being particularly well adapted and intended for useon turbine engines.

The objects of this invention are: First, to provide a governor of theclass described in which the running parts are in perfect balance, whichis a matter of the highest importance where the governor is applied tothe shaft of a steam or elastic fluid turbine. Second, to provide anarrangement and construction in a governor in which a coiled tensionspring is used in such a manner that the action of the governor weightselongates the same, in order to preserve the equilibrium of the parts.Third, to provide a construction of governor in which the friction ofthe parts moving on eachotheris minimized in order to insure itsefi'ectiveness. Fourth, to provide a governor which is compact and theparts of which are simple to construct.

Further objects, relating to details of construction, will appear fromthe detailed description to follow.

A structure embodying the features of my invention is fully described inthe following specification.

The invention is clearly defined and pointed out in the claims. I

A structure embodying the features of my invention appears fullyillustrated in the accompanying drawing, forming a part of in which:

Figure 1 is a longitudinal detail sectional view of my improvedgovernor, the casing of which is secured to the side of the casing of aturbine, the governor revolving parts of the governor being secured tothe end of a turbine shaft, the view being taken on a line correspondingto line S-S of Fig. 2; Fig. 2 is a transverse detail sectional Viewtaken on a line corresponding to line zr-w of Fig. 1; Fig. 3 is a detailview of one of the governor weights, looking from the inner sideoutwardly, showing the anti-friction ball thereof inserted in thesocket; Fig. 4 is a detail side elevation of the appearing in Fi 3,showing the same parts and the projecting knife edge rocking contactingpart thereof; Fig. 5 is a side view,

partially in section, 4 of the governor, tects the interior weights.

In the drawing, the sectional views are taken looking-in the directionof the little arrows on the section lines, and similar numerals ofreference refer to similar parts throughout the several views.

Considering the numbered parts of the drawing, the governor protectingcasing 1, through which extends the governor stem 16, s secured to asuitable flange 2 of the turbine casing, or to any other. supportsurrounding the revolvin shaft.

To the outer end of the turbine shaft or other engine shaft 3 is securedby a suitable screw thread 3 the revolving shell 4 of the governor.Within this shell are a pair of governor weights 5, which are providedwith knife edges 13 at their outer angles which rest in suitableoppositely arranged bearing grooves 13 in the hardened ring 12, which issupported and centrally located in the said outer shell 4. The inwardlyprojecting arms of these Weights are notched or recessed at 11 in such amanner as to form suitable bearing pockets for anti-friction balls 10,the said balls being retained in place on the central sleeve by a collar9 thereon, hereafter to be more fully indicated. The expansible tensionspring (3 of the governor fits into a spiral or screw shaped recess 8 inthe interior sleeve spring connection 7 to the governor stem. Theopposite end of the spring fits screw thread 7 in the adjustable sprintension sleeve connection 7 This adjustable spring tension sleeveconnection 7 is threaded externally and is adjustable by fittingcorresponding screw threads in the collar 14-, which collar is screwthreaded or otherwise effectively fitted and secured into the outer endof the outer shell 4. The adjustable governor weights into an internalsleeve is provided with notches 22 for the application of a wrench orother means for adjusting it, and when once adjusted is effectivelylocked and secured in place by the jam-nut 15, which contacts with theouter face of the collar 14. A collar 9, heretofore referred to, is onthe inner end of the pivot 25, the said lever 17 being a connectingmeans for controlling the governor valve or governor valve mechanism.

A ball race 18 is arranged and fitted into the outer end of the spindle8, and the inner end of the valve stem 16 is formed conical to contactwith the said ball bearings and permit the free rotation of the governorparts in contact with the said stem 16.

A sheet metal shell 20, containing a suitable oil absorbent, as waste,21, is inserted in the outer end of the spindle 8 and embraces the stem16. An oil hole 2-1 extends through the stem 16 for receiving oil to oilthe ball bearing at the inner end thereof. Annular grooves 26 are cutinto the hub of the shell 2a to prevent the passage of oil from theshaft 3, such grooves collecting the oil and insuring its discharge fromthe hub by centrifugal force. The centrifugal force also prevents theoil passing such grooves. Dams 2-7 are in the external casing 1 toprevent the passage of surplus oil outwardly from the shaft bearing.

It will be seen that in operation the centrifugal force acting on theweights 5 will cause them to rock on their knife edges 13 and exertpressure at their inner ends on the anti-friction balls 10 against thecollar S), thereby forcing the sleeve 8 outward, which puts tension onthe expansible spring 6, and by regulating the tension of the spring (3-the governor is set-at any pointwithin the scope of its mechanism.

The stem 16 of the governor does not revolve. Only slight pressure isexerted against it,-suflicient to operate the governor valve or governorvalve mechanism, which force is very slight, and as a consequence itwill be seen that there is no bearing between the parts revolving athigh speed under the pressure of the governor spring; and it. will alsobe seen that as the spring is secured at its opposite ends by a completescrew thread, the tension on the spring will not cause it to buckle andthrow the governor out of equilibrium, and consequently: the governorruns very smoothly without vibration or strain, and as there are noparts revolving under heavy pressure, the friction is minimized.

I have shown the complete organization of the governor with all of thedetails as I prefer to use them, but I desire to remark that, while Iwish to claim the details specifically in this relation as especiallyeffective, I also desire to present broad claims which will embrace anddominate the broad features of the structure as well.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a governor mechanism, the combination of the external protectingcasing 1; a revoluble shell 4 suitably secured to the end of the engineshaft; governor weights within the said shell having suitable knife edgeprojections; bearings within the shell to re-v ceive the knife edges;ball bearings in suitable pockets at weights; an internal springconnection spindle 8 with a collar 9 thereon for receiving the force ofthe said governor weights; an external adjustable connecting sleeve 7; acoiled tension spring fitting in suitable screw thread recesses betweenthe said sleeve and internal spring connection; a collar 14 on the outerend of the said shell 4 within which the said sleeve 7 is adjustablysupported by suitable screw threads; a suitable ball race with hearingballs 19 arranged in the outer end of the spindle 8; a governor stem 16,conical at its outer end to fit the said ball bearing; a suitableoil-packing 20 21 around the said stem; a spring 23 around the saidstem; and a collar 16 on the stem for receiving the thrust of the saidspring for holding it in yielding contact with the ball bearing, allcoacting substantially as described and for the purpose specified.

2. In a governor mechanism, the combination of a revoluble shell 4suitably secured to the end of the engine shaft; governor weights withinthe said shell having suitable knife edge projections; bearings withinthe shell to receive the said knife edges; ball hearings in suitablepockets at the inner ends of said weights; an internal spring connectionspindle 8 with a collar 9 thereon for receiving the force of the saidgovernor weights; an external adjustable spring connccting sleeve 7;acoiled tension spring fitting in suitable screw thread recesses betweenthe said sleeve and internal spring connection; a collar 14 on the outerend of the said shell 4: within which the said sleeve 7 is adjustablysupported by suitable screw threads; a suitable ball race with bearingballs 19 arranged in the outer end of the spindle 8; a governor stem 16,conical at its inner end to fit the said ball bearing; a

the inner ends of said suitable oil packing 2021 around the said stem; aspring 23 around the said stem; and a collar 16 on the stem forreceiving the thrust of the said spring for holding it in yieldingcontact with the ball bearing, all coacting substantially as describedand for the purpose specified.

In a governor mechanism, the combination of a revoluble shell 4 suitablysecured to the end of the engine shaft; governor weights within the saidshell having suitable knife edge projections; bearings within the shellto receive the said knife edges; ball bearings in suitable pockets atthe inner ends of said weights; an internal connection spindle 8 with acollar 9 thereon for receiv ingthe force of the said governor weights;an' external adjustable spring connecting sleeve 7; a coiled "tensionspring fitting in suitable screw thread recesses between the said sleeveand internal spring connection; a collar 14 on the outer end of the saidshell 4 within which the said sleeve 7 is adjustably supported bysuitable screw threads; a suitable ball race with bearing balls 19 a1:ranged in'the outer end of the spindle 8; and a governor stem 16,conical at its inner end to fit the said ball bearing, with means forholding it yieldingly against said hearing, all coacting substantiallyas described and for the purpose specified.

4. In a governor mechanism, the combination of a revoluble shell 4suitably secured to the end of the engine shaft; governor weights withinthe said shell; an internal s ring connection spindle 8 with a collar 9t ereon for receiving the force of the said governor weights; anexternal adjustable;

spring connecting sleeve 7; a coiled tension spring fitting in suitablescrew thread recesses between the said sleeve and internal springconnection; a collar 14 on-the outer end of said shell 4 within whichthe said sleeve 7 is adjustably sup orted; a suitable ball race withbearing ba s 19 arranged 'in the outer end of the spindle 8; and a-gov-.

I vernhr stem 16, conical at its inner end to fit the sald' ballbearing, with means for holding it yieldingly against said bearing, all

coacting substantially as described and for the purpose specified. I

5. In a governormechanism, the combination of a'revoluble shell 4suitably secured to the end of the engine shaft; governor weights withinthe said shell; an internal spring connection spindle 8 with a collar 9thereon for receiving the force of the said governor weights; anexternal adjustable spring connecting sleeve 7; a coiled tension springfitting in suitable screw thread recesses between the said sleeve andinternal spring connection; a collar 14 on the outer end of the saidshell 4within which the said sleeve 7 is adjustably supported; asuitable thrust hearing at the outer end of the spindle 8; agovernor-stem fittin against saidbearing, with means for ho ding ityieldingly against said-bearing, all coacting substantially as describedand for the purpose specified.

6. In a governor mechanism, the-conibina tion of a suitable shell;overnor weights within the same; an axial -arranged movable member onwhich the weights act; a thrust ball bearing at the outer end of saidaxially-arranged member; and a stem with means for urging it yieldin lyagainst the said ball bearing, coacting r the purpose specified. v

7. In a governormechanism, the combination of a suitable shell;governorweights within'the sanie; an axially-arranged movable memberonwhich the weights act; a

thrust bearing at the outer endv of said, axially-arranged member" and astem with means for urging it yiel ingly against the said bearing,coacting for the purpose specified.

In witness whereof,- I havevhereuntoii'set I 7 my hand and sealwitnesses.

CHARLES w.

'n the presen of' c w

